Double-Blind, Randomized, Historical Control Study of the Safety and Efficacy of Eslicarbazepine Acetate Monotherapy in Subjects With Partial Epilepsy Not Well Controlled by Current Antiepileptic Drugs

Subjects may continue in an open-label extension study with a starting dose of 1600 mg QD, or taper off study drug at the completion of this study The treatment period for subjects entering the open label extension study is up to 9 study visits over 18 weeks. The treatment period for subjects not entering the open-label extension study is up to 10 study visits over 19 weeks.

Subjects may continue in an open-label extension study with a starting dose of 1600 mg QD, or taper off study drug at the completion of this study The treatment period for subjects entering the open label extension study is up to 9 study visits over 18 weeks. The treatment period for subjects not entering the open-label extension study is up to 10 study visits over 19 weeks.

Drug: Eslicarbazepine acetate

1200 mg QD

Detailed Description:

This is an 18-week, double-blind, randomized, historical control, multicenter study with gradual conversion to monotherapy in subjects with partial onset seizures who are not well controlled by current AEDs. The 18 week double-blind treatment period consists of a 2-week period for titration of study drug, 6-week period for taper or conversion off AEDs, and a 10-week monotherapy period. Subjects not entering an optional open-label extension study will enter a 1-week period to taper off study drug followed by an end of study visit (week 19). This study was previously posted by Sepracor Inc. In October 2009, Sepracor Inc. was acquired by Dainippon Sumitomo Pharma., and in October 2010, Sepracor Inc's name was changed to Sunovion Pharmaceuticals Inc.

Eligibility

Ages Eligible for Study:

16 Years to 70 Years

Genders Eligible for Study:

Both

Accepts Healthy Volunteers:

No

Criteria

Inclusion Criteria:

Diagnosis of partial epilepsy as defined in the Classification of Seizures of the International League Against Epilepsy (ILAE) (simple partial seizures with observable motor component, or complex, with or without secondary generalization) a. Medical history of seizures; b. Absence of confounding factors (pseudoseizures, syncope); c. Documented EEG recording (done within 5 years prior to screening) consistent with focal onset epilepsy.

Stable treatment with 1-2 AEDs during the last 4 weeks prior to screening.

Subjects must have the ability to comprehend the informed consent form and be willing to provide informed consent. For subjects who are unable to comprehend the written consent, a witness/caregiver who is able to describe and provide an understanding of the informed consent to the subject must sign the consent form on behalf of the subject.

Subjects must give written informed consent prior to participation in the study. For subjects <18 years of age, the informed consent must be signed by the subject's parent or legal guardian, and, when appropriate and/or required by state or local law, minor subjects must give written informed assent prior to participation in the study. Subjects of Asian ancestry are required to give written informed consent for genotyping. All subjects must sign a HIPAA Form. All females of child bearing potential must also sign the "Women of Childbearing Potential" Addendum.

A female subject is eligible to enter and participate in the study if she is of: a. Non-childbearing potential (ie, physiologically incapable of becoming pregnant, including any female who is pre-menarchal or post-menopausal); b. Child-bearing potential (all females ≤65 years of age), has a negative pregnancy test at screening and agrees to satisfy contraception requirements.

Psychiatric exclusion criteria: subjects with history of suicide attempt in last 2 years; major depressive episode within last 6 months; abuse of alcohol or substance abuse in last 2 years; significant psychiatric disorder or recurrent episodes of severe depression within 2 years prior to screening.

Medical exclusion criteria: known renal insufficiency or subject with estimated creatinine clearance [CrCL] <60 mL/min based on serum creatinine using the Cockcroft-Gault formula.

Clinical and laboratory exclusion criteria: Subjects of Asian ancestry who tests positive for the presence of the HLA-B*1502 allele.

Subjects who have been on benzodiazepines, phenobarbital, or primidone on a regular basis within 3 months prior to screening.

Female subjects who are currently breastfeeding or intending to breastfeed during study period.

Contacts and Locations

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Please refer to this study by its ClinicalTrials.gov identifier: NCT00866775